Fiddler 1) is a HTTP Network Analyzer via a forward proxy
It will install itself as the system HTTP Forward proxy.
Browsers support the system proxy (ie windows configuration). You have nothing to do to see and capture the request made by browsers.
You need to configure the proxy to point to Fiddler
Example Java:
ProxyOptions fiddler = new ProxyOptions();
fiddler.setHost("127.0.0.1");
fiddler.setPort(8888);
RequestOptions clientRequestOptions = new RequestOptions()
.setProxyOptions(fiddler)
System.setProperty("http.proxyHost", "127.0.0.1");
System.setProperty("https.proxyHost", "127.0.0.1");
System.setProperty("http.proxyPort", "8888");
System.setProperty("https.proxyPort", "8888");
// For the seamless experience in Windows you may consider adding
System.setProperty("javax.net.ssl.trustStoreType","Windows-ROOT");
Be sure that there is no filter in the bottom left corner. If this is the case, a right click will delete it